<template>
  <div id="app">
    <router-view/>
    <van-tabbar route active-color="#c35559" v-if="isShow">
      <van-tabbar-item replace to="/home" icon="wap-home-o">首页</van-tabbar-item>
      <van-tabbar-item replace to="/topic" icon="search">专题</van-tabbar-item>
      <van-tabbar-item replace to="/category" icon="apps-o">分类</van-tabbar-item>
      <van-tabbar-item replace to="/cart" icon="shopping-cart-o">购物车</van-tabbar-item>
      <van-tabbar-item replace to="/mine" icon="friends-o">我的</van-tabbar-item>
    </van-tabbar>
  </div>
</template>
<script>
export default {
  data(){
    return{
      isShow: true
    }
  },
  //监听路由变化
  watch:{
    $route(to,from){
      //对路由变化做出响应
      // debugger
      // console.log(to,from)
      var arr = ["/home","/topic","/category","/cart","/mine"]
      if(arr.includes(to.path)){
        this.isShow = true
      }else {
        this.isShow = false
      }
    }
  }
}
</script>
<style lang="scss">
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

#nav {
  padding: 30px;

  a {
    font-weight: bold;
    color: #2c3e50;

    &.router-link-exact-active {
      color: #42b983;
    }
  }
}
</style>
